refactor: remove forum and topic feature chains

inc/helpers/aksrt-single-components.php

@@ -175,7 +175,7 @@ endif;
 
 if (!function_exists('aksrt_get_colored_term_tags')) :
 	/**
-	 * Colored but-links for terms (Zibll cat/topics palette).
+	 * Colored but-links for terms.
 	 *
 	 * @param WP_Term[] $terms Terms.
 	 * @param string    $class Base class.
@@ -207,22 +207,9 @@ endif;
 
 if (!function_exists('aksrt_get_single_article_tags_html')) :
 	/**
-	 * topics → categories → tags (Zibll footer order).
+	 * Categories → tags.
 	 */
 	function aksrt_get_single_article_tags_html(int $post_id): string {
-		$topics_html = '';
-		if (taxonomy_exists('topics')) {
-			$topics = wp_get_post_terms($post_id, 'topics');
-			if (!is_wp_error($topics) && !empty($topics)) {
-				$topics_html = aksrt_get_colored_term_tags(
-					array_slice($topics, 0, 6),
-					'but ml6 radius',
-					'<i class="fa fa-cube" aria-hidden="true"></i> ',
-					['c-yellow', 'c-green', 'c-purple', 'c-red', 'c-blue']
-				);
-			}
-		}
-
 		$cats = get_the_category($post_id) ?: [];
 		$cat_html = aksrt_get_colored_term_tags(
 			$cats,
@@ -246,7 +233,7 @@ if (!function_exists('aksrt_get_single_article_tags_html')) :
 			}
 		}
 
-		$top = $topics_html . $cat_html;
+		$top = $cat_html;
 		if ($top === '' && $tags_html === '') {
 			return '';
 		}